Alloy G-30 (UNS N06030) is a Ni-Cr-Fe corrosion-resistant alloy with alloying additions of molibdenum, tungsten, copper and niobium. Generally resistant to oxidizing environments, it's extremely resistant to phosphoric acid (P2O5) and thus used widely in the production of agrichemical fertilizers. It can be seen as a low-carbon variant of alloy G, with improved weldability (it's less prone to heat-affected zome carbide precipitation and hot-cracking), and ductility.Used in phosphoric acid plants, sulphuric acid service, nitric acid service, pickling operations, petrochemical operations, fertilizer manufacture, pesticide manufacture, gold extraction and nuclear waste processing.
The support platform is also called the Threaded Olet, saddle seat, and saddle type pipe joint. It is mainly used for reinforcing pipe fittings of branch pipe connection, instead of using reducing tee, reinforcing plate, reinforcing pipe section and other branch pipe connection types. It has the advantages of safety and reliability, reducing cost, simple construction, improving medium flow channel, series standardization, convenient design and selection, etc., especially in high pressure, high temperature, large diameter, thick wall pipes are used increasingly widely, replacing the traditional branch pipe connection method.